xnu-1699.22.73.tar.gz

[apple/xnu.git] / iokit / IOKit / IONVRAM.h

diff --git a/iokit/IOKit/IONVRAM.h b/iokit/IOKit/IONVRAM.h
index 3322945d541fb0b9ef4d975621ac7daa7413ab3e..15bf709f62b861d3d695d437ac295a00e40d38f9 100644 (file)
--- a/iokit/IOKit/IONVRAM.h
+++ b/iokit/IOKit/IONVRAM.h
@@ -29,17 +29,20 @@
 #ifndef _IOKIT_IONVRAM_H
 #define _IOKIT_IONVRAM_H
 
+#ifdef __cplusplus
 #include <IOKit/IOKitKeys.h>
 #include <IOKit/IOService.h>
 #include <IOKit/IODeviceTreeSupport.h>
 #include <IOKit/nvram/IONVRAMController.h>
-
+#endif /* __cplusplus */
 
 #define kIODTNVRAMOFPartitionName       "common"
 #define kIODTNVRAMXPRAMPartitionName    "APL,MacOS75"
 #define kIODTNVRAMPanicInfoPartitonName "APL,OSXPanic"
 #define kIODTNVRAMFreePartitionName     "wwwwwwwwwwww"
 
+#define MIN_SYNC_NOW_INTERVAL 15*60 /* Minimum 15 Minutes interval mandated */
+
 enum {
   kIODTNVRAMImageSize        = 0x2000,
   kIODTNVRAMXPRAMSize        = 0x0100,
@@ -56,9 +59,12 @@ enum {
 enum {
   kOFVariablePermRootOnly = 0,
   kOFVariablePermUserRead,
-  kOFVariablePermUserWrite
+  kOFVariablePermUserWrite,
+  kOFVariablePermKernelOnly
 };
 
+#ifdef __cplusplus
+
 class IODTNVRAM : public IOService
 {
   OSDeclareDefaultStructors(IODTNVRAM);
@@ -85,6 +91,8 @@ private:
   UInt32            _piPartitionSize;
   UInt8             *_piImage;
   bool              _systemPaniced;
+  SInt32            _lastDeviceSync;
+  bool              _freshInterval;
   
   virtual UInt8 calculatePartitionChecksum(UInt8 *partitionHeader);
   virtual IOReturn initOFVariables(void);
@@ -161,6 +169,9 @@ public:
                                       IOByteCount length);  
   
   virtual IOByteCount savePanicInfo(UInt8 *buffer, IOByteCount length);
+  virtual bool safeToSync(void);
 };
 
+#endif /* __cplusplus */
+
 #endif /* !_IOKIT_IONVRAM_H */